DOAJ Open Access 2018

Development of an empirical model for chlorophyll-a and Secchi Disk Depth estimation for a Pampean shallow lake (Argentina)

Vanesa Y. Bohn Facundo Carmona Raúl Rivas Leonardo Lagomarsino Nadia Diovisalvi +1 lainnya

Abstrak

Shallow Pampean lakes are located in the most productive plain of Argentina. They are highly variable in salinity, turbidity and surface area. Laguna Chascomús has been monitored as a representative example of them. We developed a linear model based on satellite images validated against field measurements (2001–2011 period). A vegetation index and Landsat Surface Reflectance (Band 4) produced the best correlations with chlorophyll-a (Chl-a) and Secchi Disk Depth (SDD), respectively. In a second instance, a retrospective analysis (1986–2013) was performed. As a result, significant positive trends were observed for SDD and Chl-a. In addition, both variables displayed trends related to rainfall and site depth. Keywords: Chlorophyll-a, Turbidity, Remote sensing

Topik & Kata Kunci

Geodesy

Penulis (6)

Vanesa Y. Bohn

Facundo Carmona

Raúl Rivas

Leonardo Lagomarsino

Nadia Diovisalvi

Horacio E. Zagarese

Format Sitasi

APA MLA BibTeX

Bohn, V.Y., Carmona, F., Rivas, R., Lagomarsino, L., Diovisalvi, N., Zagarese, H.E. (2018). Development of an empirical model for chlorophyll-a and Secchi Disk Depth estimation for a Pampean shallow lake (Argentina). https://doi.org/10.1016/j.ejrs.2017.04.005

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Informasi Jurnal

Tahun Terbit: 2018
Sumber Database: DOAJ
DOI: 10.1016/j.ejrs.2017.04.005
Akses: Open Access ✓